مونيل 400

Monel 400 Nickel Copper Alloy

Monel® 400

UNS N04400 | W.Nr. 2.4360 | Alloy 400

Monel 400 is a solid-solution binary alloy of nickel (approx. 63%) and copper (approx. 30%) that offers an excellent combination of high strength and toughness over a wide temperature range, and superior resistance to many corrosive environments.

  • الأشكال الشائعة: Pipe, Tube, Plate, Sheet, Round Bar, Wire, Forgings.
  • الميزة الرئيسية: Exceptional resistance to sea water and steam at high temperatures.
  • Chemical Resistance: Resistant to hydrochloric and hydrofluoric acids when de-aerated.
  • قابلية اللحام: Good weldability by standard processes.
Why Choose Monel 400?

Monel 400 is defined by its unique nickel-copper composition, which provides greater corrosion resistance than commercially pure nickel, particularly in reducing environments. Its versatility makes it a standard material in marine and chemical industries.

Marine Environment

The industry standard for marine applications due to its extremely low corrosion rate in flowing seawater and resistance to bio-fouling.

حمض الهيدروفلوريك

One of the few alloys that can withstand hydrofluoric acid in all concentrations up to the boiling point, making it vital for alkylation units.

High Strength & Toughness

Maintains excellent mechanical properties from sub-zero temperatures up to approx. 1000°F (538°C). It does not undergo a ductile-to-brittle transition.

التركيب الكيميائي (%)
العنصر المحتوى (%)
النيكل (ني) 63.0 min
النحاس (النحاس) 28.0 - 34.0
الحديد (Fe) 2.5 كحد أقصى
المنجنيز (Mn) 2.0 max
الكربون (C) 0.3 max
السيليكون (Si) 0.5 max
Sulfur (S) 0.024 max
المواصفات القياسية
نموذج المنتج معايير ASTM / ASME
الأنابيب والأنابيب (غير الملحومة) ASTM B165, ASME SB165
أنابيب (ملحومة) ASTM B725, ASME SB725
لوحة، ورقة، شريط، شريط ASTM B127, ASME SB127
بار وقضيب ASTM B164, ASME SB164
التركيبات astm B366، ASM SB366
المطروقات astm B564، ASM SB564
الخواص الميكانيكية (نموذجية ملدنة)
الممتلكات القيم النموذجية (درجة حرارة الغرفة)
قوة الشد 75 - 90 ksi (517 - 620 MPa)
قوة الخضوع (إزاحة 0.2%) 25 - 50 ksi (172 - 345 MPa)
الاستطالة 35 - 60 %
الصلابة (برينل) 110 - 150 HB

*Note: Properties can vary significantly based on the product form and temper (e.g., cold-drawn vs. annealed).

التطبيقات النموذجية

الهندسة البحرية

Propeller and pump shafts, sea water valves, strainer baskets, and fishing trawler parts.

المعالجة الكيميائية

Equipment for handling hydrofluoric acid, sulfuric acid, and alkalis; salt production equipment.

Oil & Gas Well

Pump shafts and impellers, drill collars, and instruments used in corrosive well environments.

Electronic Components

Used in electrical and electronic applications due to its good electrical conductivity and non-magnetic properties (at room temp).

Need Monel 400 for Your Project?

We stock a wide range of Monel 400 in pipe, sheet, and bar forms. Contact our sales team for availability and mill test reports (MTR).

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